Spent the day rearranging some code to do light projection, not very exciting, but more interesting to come. Walked Sasha but phone was playing up so couldn’t get a decent Pokemon Go connection, so that was a walk wasted. Walked to gym. Started Pump. Halfway through chest and the fire alarm went off. So stood in carpark for half an hour in a vest. At least I brought my small towel. Fire engine turned up. There was indeed a real fire in the plant room. We were let back in but were told to just gather our stuff and leave, you could certainly smell the burning. Walked home. Soldered some thing for my nephew. Ate salad. Looked up cones intersecting planes.